A survey of college students’ civic literacy found that nearly 20% of those polled thought Martin Luther King’s “I Have a Dream” speech was advocating the abolition of slavery. Hey, it’s not easy keeping Abraham, Martin, and John straight, you know. Interestingly, 22% thought President’s Day honors George Bush, 43% said Labor Day celebrates pregnant mothers, and 37% said Christmas is the day Santa Claus was born in a manger made of pine trees and blinking lights.